Thin keratinized layer of epidermis projecting from outer surface of beak[WP]. [ http://en.wikipedia.org/wiki/Beak#Rhamphotheca ]
This is just here as a test because I lose it
Term information
development notes
This covering arises from the Malpighian cells of the bird's epidermis,[9] growing from plates at the base of each mandible
Term relations
Subclass of:
- head external integument structure
- ectoderm-derived structure
- part of some skin epidermis
- part of some beak